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<html>
<!--
Copyright 2008 The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by an Apache 2.0 License.
See the COPYING file for details.
-->
<head>
<title>Closure Unit Tests - goog.testing.MockRandom</title>
<script src="../base.js"></script>
<script>
  goog.require('goog.testing.MockRandom');
  goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script>

  function testMockRandomInstall() {
    var random = new goog.testing.MockRandom([]);
    var originalRandom = Math.random;

    assertFalse(!!random.installed_);

    random.install();
    assertTrue(random.installed_);
    assertNotEquals(Math.random, originalRandom);

    random.uninstall();
    assertFalse(random.installed_);
    assertEquals(originalRandom, Math.random);
  }

  function testMockRandomRandom() {
    var random = new goog.testing.MockRandom([], true);

    assertFalse(random.hasMoreValues());

    random.inject(2);
    assertTrue(random.hasMoreValues());
    assertEquals(2, Math.random());

    random.inject([1, 2, 3]);
    assertTrue(random.hasMoreValues());
    assertEquals(1, Math.random());
    assertEquals(2, Math.random());
    assertEquals(3, Math.random());
    assertFalse(random.hasMoreValues());
    assertNotUndefined(Math.random());
  }
  
</script>
</body>
</html>
